94 GEORGE H. HORN, M. D. 



Thorax as broad as long, sides rounded and narrowed to base ; disc with broad 

 darker space at middle ; densely and rather coarsely punctured. Elytra 

 elongate, parallel, sutural and lateral margins and narrow oblique stripe ex- 

 tending from the humerus to near the apex, pale testaceous; densely punc- 

 tured and scabrous. Body beneath brownish, densely punctured. Legs densely 

 punctured; coxse, base and apex of femora, base of tibiae and proximal end of 

 tarsal joints pale testaceous. Antennae long, slender, testaceous, equalling three 

 fourths the length of body. Length .40 inch ; 10 mm. 



llesembles Epkauta rather than Zonitis, and may be distinguished 

 from all our species by its long antennne and very densely punctured 

 surface as well as by the system of coloration. 



One specimen from Central Illinois, is known and had been, from its 

 form placed among the species of Epicauta in my cabinet. 



GNATHIUM, Kirby. 



The characters separating this genus from Nemognatlia are very 

 slight, and the addition of new species seems to be gradually lessening 

 their value, the only character remaining being a slight thickening of 

 the outer joints of the antennae. 



Our species are as follows : 



Color j^ellowish- testaceous. 



Elytra opaque, densely punctured. 



Thorax elongate minimum. 



Thorax not longer than broad, sides strongly rounded texanum. 



Elytra shining, feebly punctured; thorax campanulate nitidum. 



Color black, thorax yellowish testaceous. 



Elytra coarsely, not densely punctured flavicolle. 



G. minimum. Say, Journ. Acad. Ill, p. 306. 



Diifers from the following species in the form of thorax which may 

 be described as very elongate oval slightly flattened above, sides feebly 

 rounded, truncate at base and apex. The surflice is evenly punctured 

 the punctures moderately coarse, much more so than in any other 

 species known to me. The elytral punctures are coarser and more 

 densely placed ; surface with semi-recumbent hairs which vary in 

 color. Body beneath, darker in color, sometimes brown with the legs 

 dusky. In the species with dark under surface the hairs are black, 

 when pale or similar in color to the upper surface the hairs are also 

 pale. Length .30 inch; 7.5 mm. 

 Kansas, New Mexico and Texas. 



G. texanum, n. sp. 



Similiir to minimum but smaller. Thorax not longer than broad, 

 wider in front of middle, sides strongly rounded in front. Surflice 

 sparsely and irregularly coarsely punctured. Elytra more finely and 

 less densely punctured than in minimum, and sparsely clothed with 



